Need a new iPhone app? Check out Comets and Craters, a new iPhone tower defense strategy game.

These ten video tutorials cover all of the gameplay troubles you may have. Steve explains the features and gameplay to help you get the most out of playing Comets and Craters on your Apple iPhone. For those more seasoned Tower Defense players, the video's also provide some insight regarding scoring, upgrades, plus Tower and Enemy capabilities.

The year is 2120. The past decade has seen Earth become the target of increasing numbers of Comets and Meteorites in our solar system. A defence system known as "NeoGrid" has been created to redirect these Comets and Meteorites to crash in the secure compound of Space Station "Orion" based on the Moon. The rich mineral and crystal deposits left by these exploding Comets and Meteorites has provided a valuable fuel source and manufacturing material for Earth.The abundance of such deposits has lured Alien attacks to Earth seeking to obtain our new resources for their own purpose. NeoGrid has been expanded to defend against such attacks, however an Ancient Alien race known as the Dracone has infiltrated NeoGrid's defence system and invaded Orion by assimilating our defence vehicles and personnel in an attempt to destroy our Space Station.You are the last hope of defending Orion and Earth against total annihilation. You must use Orion's resources to construct Defence Towers and Mines. Upgrade the Space Station and Processing Docks to expand Orion's mining and defense tower capabilities to defeat the Dracone invaders and save the human race.

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(1) Part 1 of 10 - How to Play the Comets and Craters iPhone tower defense game, (2) Part 2 of 10 - How to Play the Comets and Craters iPhone tower defense game, (3) Part 3 of 10 - How to Play the Comets and Craters iPhone tower defense game, (4) Part 4 of 10 - How to Play the Comets and Craters iPhone tower defense game, (5) Part 5 of 10 - How to Play the Comets and Craters iPhone tower defense game, (6) Part 6 of 10 - How to Play the Comets and Craters iPhone tower defense game, (7) Part 7 of 10 - How to Play the Comets and Craters iPhone tower defense game, (8) Part 8 of 10 - How to Play the Comets and Craters iPhone tower defense game, (9) Part 9 of 10 - How to Play the Comets and Craters iPhone tower defense game, (10) Part 10 of 10 - How to Play the Comets and Craters iPhone tower defense game